AMR is a follower in regards to the industry. They wont operate 70seaters at mainline unless everyone else is doing it. For this reason I would expect AMR to get a scope change from APA, find a third party to operate a token number of CRJ700s and/or EMB170s, then threaten AE and try to get lower payscales in exchange for the a/c. . . .
I don't think there is any possibility of relaxation of commuter clause scope. With the recent announcement concerning BA and IB, a much larger potential scope violation/concern has surfaced.